×

Connectedness of approximate solutions set for vector equilibrium problems in Hausdorff topological vector spaces. (English) Zbl 1315.47055

Summary: In this paper, a scalarization result of \(\varepsilon\)-weak efficient solution for a vector equilibrium problem (VEP) is given. Using this scalarization result, the connectedness of \(\varepsilon\)-weak efficient and \(\varepsilon\)-efficient solutions sets for the VEPs are proved under some suitable conditions in real Hausdorff topological vector spaces. The main results presented in this paper improve and generalize some known results in the literature.

MSC:

47J20 Variational and other types of inequalities involving nonlinear operators (general)
90C33 Complementarity and equilibrium problems and variational inequalities (finite dimensions) (aspects of mathematical programming)

References:

[1] Blum B, Oettli W: From optimzation and variational inequalities to equilibrium problems.Math. Stud 1994, 63:123-145. · Zbl 0888.49007
[2] Chen GY, Huang XX, Yang XQ: Vector Optimization: Set-Valued and Variational Analysis. Springer, Berlin; 2005. · Zbl 1104.90044
[3] Giannessi F, (ed): Vector Variational Inequilities and Vector Equilibria: Mathematical Theories. Kluwer, Dordrechet; 2000. · Zbl 0952.00009
[4] Ansari QH, Flores-Bazan F: Recession methods for generalized vector equilibrium problems.J Math Anal Appl 2006, 321:132-146. · Zbl 1107.49007 · doi:10.1016/j.jmaa.2005.07.059
[5] Ansari QH, Oettli W, Schläger D: A generalization of vector equilibrium.Math Methods Oper Res 1997, 46:147-152. · Zbl 0889.90155 · doi:10.1007/BF01217687
[6] Ansari QH, Yao JC: An existence result for the generalized vector equilibrium problem.Appl. Math. Lett 1999, 12:53-56. · Zbl 1014.49008 · doi:10.1016/S0893-9659(99)00121-4
[7] Chen B, Gong XH: Continuity of the solution set to parametric set-valued weak vector equilibrium problems.Pacific J. Optim 2010, 6:511-520. · Zbl 1197.49025
[8] Chen CR, Li SJ, Teo KL: Solution semicontinuity of parametric generalized vector equilibrium problems.J. Glob. Optim 2009, 45:309-318. · Zbl 1213.54028 · doi:10.1007/s10898-008-9376-9
[9] Konnov IV, Yao JC: Existence of solutions of generalized vector equilibrium problems.J. Math. Anal. Appl 1999, 233:328-335. · Zbl 0933.49004 · doi:10.1006/jmaa.1999.6312
[10] Fu JY: Generalized vector quasivariational problems.Math. Methods Oper. Res 2000, 52:57-64. · Zbl 1054.90068 · doi:10.1007/s001860000058
[11] Hou SH, Yu H, Chen GY: On vector quasi-equilibrium problems with set-valued maps.J. Optim. Theory Appl 2003, 119:139-154. · Zbl 1061.90099 · doi:10.1023/B:JOTA.0000006686.19635.ad
[12] Tan NX: On the existence of solutions of quasi-variational inclusion problems.J. Optim. Theory Appl 2004, 123:619-638. · Zbl 1059.49020 · doi:10.1007/s10957-004-5726-z
[13] Peng JW, Joseph Lee HW, Yang XM: On systems of generalized vector quasi-quilibrium problem with set-valued maps.J. Glob. Optim 2006, 35:139-158. · Zbl 1112.49019 · doi:10.1007/s10898-006-9004-5
[14] Lin LJ, Ansari QH, Huang YJ: Some existence results for solutions of generalized vector quasi-equilibrium problems.Math. Methods Oper. Res 2007, 65:85-98. · Zbl 1137.49010 · doi:10.1007/s00186-006-0102-4
[15] Long XJ, Huang NJ, Teo KL: Existence and stability of solutions for generalized strong vector quasi-equilibrium problem.Math. Comput. Model 2008, 47:445-451. · Zbl 1171.90521 · doi:10.1016/j.mcm.2007.04.013
[16] Huang NJ, Li J, Yao JC: Gap functions and existence of solutions for a system of vector equilibrium problems.J. Optim. Theory Appl 2007, 133:201-212. · Zbl 1146.49005 · doi:10.1007/s10957-007-9202-4
[17] Li J, Huang NJ: Implicit vector equilibrium problems via nonlinear scalarisation.Bull. Aust. Math. Soc 2005, 72:161-172. · Zbl 1081.49008 · doi:10.1017/S000497270003495X
[18] Li J, Huang NJ, Kim JK: On implicit vector equilibrium problems.J. Math. Anal. Appl 2003, 283:501-512. · Zbl 1137.90715 · doi:10.1016/S0022-247X(03)00277-4
[19] Park S: Fixed points of better admissible maps on generalized convex spaces.J. Korea Math. Soc 2000,37(6):885-899. · Zbl 0967.47039
[20] Park S: Equilibrium existence theorems in KKM spaces.Nonlinear Anal. TMA 2008, 69:4352-4364. · Zbl 1163.47044 · doi:10.1016/j.na.2007.10.058
[21] Park S: Compact Browder maps and equilibria of abstract economies.J. Appl. Math. Comput 2008, 26:555-564. · Zbl 1145.54327 · doi:10.1007/s12190-007-0022-3
[22] Park S: Remarks on fixed points, maximal elements, and equilibria of economies in abstract convex spaces.Taiwanese J. Math 2008, 12:1365-1383. · Zbl 1194.47065
[23] Park S, Kim H: Coincidence theorems for admissible multifunctions on generalized convex spaces.J. Math. Anal. Appl 1996, 197:173-187. · Zbl 0851.54039 · doi:10.1006/jmaa.1996.0014
[24] Park S, Kim H: Founditions of the KKM theory on generalized convex spaces.J. Math. Anal. Appl 1997, 209:551-571. · Zbl 0873.54048 · doi:10.1006/jmaa.1997.5388
[25] Lee GM, Kim DS, Lee BS, Yen ND: Vector variational inequality as a tool for studying vector optimization problems.Nonlinear Anal.: Theory, Methods Appl 1998, 34:745-765. · Zbl 0956.49007 · doi:10.1016/S0362-546X(97)00578-6
[26] Cheng YH: On the connectedness of the solution set for the weak vector variational inequality.J. Math. Anal. Appl 2001, 260:1-5. · Zbl 0990.49010 · doi:10.1006/jmaa.2000.7389
[27] Gong XH: Efficiency and Henig efficiency for vector equilibrium problems.J. Optim. Theory Appl 2001, 108:139-154. · Zbl 1033.90119 · doi:10.1023/A:1026418122905
[28] Gong, XH; Fu, WT; Liu, W.; Giannessi, F. (ed.), Super efficiency for a vector equilibrium in locally convex topological vector spaces, 233-252 (2000), Netherlands · Zbl 1019.49016 · doi:10.1007/978-1-4613-0299-5_13
[29] Gong XH: Connectedness of the solution sets and scalarization for vector equilibrium problems.J. Optim. Theory Appl 2007, 133:151-161. · Zbl 1155.90018 · doi:10.1007/s10957-007-9196-y
[30] Chen B, Gong XH, Yuan SM: Connectedness and compactness of weak efficient solutions set for set-valued vector equilibrium problems.J. Inequal. Appl 2008, 2008:15. Article ID 581849 · Zbl 1157.49009 · doi:10.1155/2008/581849
[31] Gong XH, Yao JC: Connectedness of the set of efficient solutions for generalized systems.J. Optim. Theory Appl 2008, 138:189-196. · Zbl 1302.49011 · doi:10.1007/s10957-008-9378-2
[32] Zhong RY, Huang NJ, Wong MM: Connectedness and path-connectedness of solution sets for symmetric vector equilibrium problems.Taiwan. J. Math 2009, 13:821-836. · Zbl 1176.49019
[33] Aubin JP, Ekeland I: Applied Nonlinear Analysis. Wiley, New York; 1984. · Zbl 0641.47066
[34] Robertson AP, Robertson W: Topological Vector Spaces. Cambridge University Press; 1964. · Zbl 0123.30202
[35] Warburton AR: Quasi-concave vector maximization: connectedness of the sets of Pareto-optimal and weak Pareto-optimal alternatives.J. Optim. Theory Appl 1983, 40:537-557. · Zbl 0496.90073 · doi:10.1007/BF00933970
This reference list is based on information provided by the publisher or from digital mathematics libraries. Its items are heuristically matched to zbMATH identifiers and may contain data conversion errors. In some cases that data have been complemented/enhanced by data from zbMATH Open. This attempts to reflect the references listed in the original paper as accurately as possible without claiming completeness or a perfect matching.